An algorithm for infrared image enhancement based on gray scale transform 一种基于灰度变换的红外图像增强算法
Based on scale transform method of time, an experiential formula is proposed for viscoelastic stress relaxation process 摘要通过时间标度变换方法,提出了粘弹性应力松弛过程的一个经验公式。
Lifting scheme can be used to calculate discrete wavelet transform ( dwt ) efficiently, it is composed of a number of lifting steps and the scaling transform 提升方法是计算离散小波变换的有效手段,它由提升步和拉伸变换组成。
The text is reflected using a scaling transform, but first a new origin is set to prevent the text from being drawn outside the viewable area of the form 文本是使用缩放转换反射的,但首先要设置新原点,防止将文本绘制到窗体的可视区域之外。
Pslift first calculate all lifting steps of each level and each dimensional dwt, and then calculate the scaling transform . for example, when five level decompositions is implemented for cdf 9 7 wavelet, compared to the known methods, the number of multiplication needed is reduced by 20 % and 28 % corresponds to one dimensional dwt and two dimensional dwt, respectively 例如,对图像与视频压缩中应用广泛的cdf9/7小波,做一维5级分解时与现有方法相比,乘法运算量减少20,而做二维5级分解时,乘法运算量可以减少28。
Using wavelet-based multi-scale transform to detect infrared target, it is possible to acquire modulus image to segment citrus from background under direct sunlight conditions, whereas it is difficulty to identification because of the confusion of the reflected light from leaves under backlighting . the method is very sensitive to the ambient air condition, such as in condition b or c, the identification is very difficult 用该方法可以较好地识别顺光条件下采集的红外热图像中的果实,而在背光条件下,由于位于树冠边缘的树叶反射光较强或穿过树冠的光使周围的树叶光反射较强,使果实在红外热图像中的温度或灰度低于反射光强的树叶等部分,则不能识别。
In hardware design, a / d, mt8880, serial port communication module and other interface circuit are described . in software design, the related algorithms such as scale transform, digital filter, digital zero, dtmf communication and repeated output program are considered 硬件设计主要介绍了ad转换、mt8880、串行通信等模块和接口的电路设计,软件设计主要介绍了程序设计中比较关键的标度变换、数字滤波、数字调零和重复输出等数据处理的算法以及利用dtmf信号实现数据采集器和监测站传输数据的通信软件设计。
Chapter 5 introduces sampling-holding device principle, types and main performance parameters . we discussed the relationship between the sampling and the s-h device . chapter 6 discussed the pre-processing of sampling data including the scale transforming, digital filtering, reducing oddity and eliminating or pick-up tread item as well as smoothing process of the sampling data 在第6章,对采样数据的预处理进行讨论,包括采样数据的标度变换、采样数据的数字滤波、剔除采样数据中的奇异项、去除或提取采样数据的趋势项、采样数据的平滑处理等数据处理方法。
The thesis summarizes many methods that were excogitated in these several decades, in which wavelet transform has favorable time-frequency localization, scale transform and direction characteristic, and it has been a convincing tool for texture analysis as it can adapt mortal seeing system much easily 文章总结了几十年来,人们提出的许多纹理分析的方法。其中小波变换具有良好的时频局部化、尺度变换和方向特征,更容易适应人类视觉系统,它已成为纹理分析的一个有力的工具。
Recently, bureau of national broadcast largely promotes the digitalization of broadcast and television . a number of local governments, beijing, shanghai, tianjin, chongqing, hainan, ningbo, xiamen, fuzhou, quanzhou, linxi, mianyang start to carry out the full scale transform of digital television 今年数字电视“整体转换”将全面开花,北京、上海、天津、重庆、海南、宁波、厦门、福州、泉州、临沂、绵阳等一大批省市将开始“整体转换”,数字电视增值业务将开始真正“增值”。